I came across a bug in the above transactional emails (might affect Credit Memo email too but didn’t get that far in my testing) that drove me nuts. Took a bit of Googling and the results were above my head but I worked through it. Thought it might be useful for others too.
The bug is that the “sender” details are not displayed as configured in the Magento backend for the above transactional emails. Instead, the default email address for the hosting account is shown as the sender. In my case, it’s something like
Not very user friendly and potentially confusing for the customer.
This bug was introduced in the version 2.2.4 upgrade and exists in 2.2.5 as well.
The workaround is to disable the following modules (if you don’t need them of course)
by running the command
php bin/magento module:disable Amazon_Core Amazon_Login Amazon_Payment
You can read more about it at the following URL but it was pretty much over my head: https://github.com/magento/magento2/issues/14952
I hope this is of some use to those starting a 2.2.5 store.